#include <iostream>
#include <ctime>
#include <cstdlib>

int main()
{
	std::srand(std::time(0));
	int n = 10, upper = 20;
	std::cout << n << '\n';
	for (int i = 0 ; i < n; i++)
		std::cout << rand() % upper + 1 << "\n";
}

